Generating system and generator therefor.



E. B. JACOBSON. GENERATING SYSTEM AND GENERATOR THEREFOR.

I APPLICATION FILED NOV. 9. I914- Patented. Apr. 2, 1918. 3 SHEETS-SHEET 1 EMH h m- O N @mww ' Dam/MS M @uW hub E. B. JACOBSON.

GENERATING SYSTEM AND GENERATOR THEREFOR.

APPLICATION FILED NOV. 9. 1914.

1,261,239. Patent-ed Apr, 2, 1918.

3 SHEETS-SHEET 2.

E. B. mcossou.

GENERATING SYSTEM AND GENERATOR THEREFOR; urucmou FILED NOV. 9. 1914.

1,261,239.. Patented Apr. 2,1911% 25 I S SHEETS-NEH 3- 1 outrun sTATEs PATENT QFFIQE.

EDWARD B. J'ASOIBSON, F PITTSFIELD, MASSACHUSETTS, ASSIGNOR. T0 HENDEE MARQU- FACTUBIIQ'G COMPANY, OF SPRINGFIELD, MASSACHUSETTS, A COBPGBATKON 3F MASSACHUSETTS.

GENERATING SYSTEM AND GENERATOR THEREFOR.

' and useful Improvements in Generating Systems and Generators Therefor, of which the followlng 1S a description, reference being had to the accompanying drawing and to the figures of reference marked thereon.

The invention relates to new and useful improvements in generating systems and generators therefor, and more particularly to a generating system which may be used for furnishing ignition andcharging a battery to be used for lighting or operating the horn of a motor vehicle.

- An object of the invention is to provide a generating system, wherein the generator is provided with a single armature having separate and independent coils disposed thereon side'by side longitudinally of the armature; one of which provides a high tension source of current for ignition, while the other provides an intermittent direct current for charging the battery.

A further object of the invention is to pro iLilde a generator with a single armature havi separate and independent coils disposed thereon side by side longitudinally of the armature and with permanent field mag nets which are separated fit-om each other and which cooperate respectively with said coils.

Theseand other objects will in part be obvious and will in part he hereinafter more fully disclosed.

In the drawings Figure 1 is a diagrammatic view, showing a generating system embodying one form of the invention;

Fig. 2 is a verticalsectional view through a generator which may he used in my improved generating system;

Fig. 3 is a sectional view in perspective,

showing the generator and the connection to a battery;

- Fig. d is a view similar to Fig. 3, withthe battery connection omitted and showing a modified form of the invention; and

The invention consists generally pro Specification of Letters Patent.

' viding a generator halving a single armature, at one end of which 15 a'primary coil and a secondary coil which cooperate in furnishilig the current supplied for ignition. The primary circuit is normally open and is closed with proper timing in orderthat a current may be induced in the secondary at the desired timefor ignition. The secondary is connected through a distributer with the engine if more than one cylinder is used. Also located on the armature and at the other end thereof, is a coil, or a plurality of coils, which are connected to a commuter" tor and brushes cooperating with the commutator to supply the battery with an intermittent positive charging current. use U-shaped magnets and that the fields for the difierentgenerator coils shall be separated from each other I Referring more in detail to the drawings, I have shown in Fig. 1 a generating system, wherein the armature is indicated at -'l. Mounted on the armatureis a primary coil 2, which is connected at one end with a circuit breaker 3 and at the other end with the ground at 4t. A condenser 5 is connected at one end to the primary 'coil and at the other end to the ground. Also mounted on the armature lis a secondary coil 6. One

terminal of the secondary coil is grounded,.

while the other terminal connects with a distributor 7. the current to the spark plugs 8 and 9 alt-en nately.

in the usual manner. I have'provided the armature 1. as shown in Fig 1, with a seriesthrough a cut-out 14 and a switch 15 to a battery 16. The other terminal of the bat tery is grounded as at 17. The switch .15

I re er to Patented Apr. 2, 191a.

Application filed November 9, 1914. Serial No. 871,123.

The distrihuter 7 supplies Each spark plug is grounded, as

controls a circuit 18 leading to a head-light 19 and a tail light 20, and also to an electric horn 21. L i The generating system Wlll perhaps he better understood by a more detail de-.

scription of the generator, as shown in Figs. 2 and 3. The generator includes a supportmg base 22, on which is mounted two separate magnetic fields 23 and 24. These fields are separated by suitable installation art-25,

Each magnetic field is in the form of a U- shaped magnet. The armature 1 rotates in a suitable ball bearing 26 at one end and a suitable ball bearing 27 at the other end. At the right-hand end, as shown in Fig. 2, said armature is in the form of a sleeve which is made integral with a disk plate 28 located substantially between the magnetic fields 23 and 24. The extreme outer end of the sleeve is reduced, as at 29, while the section between the reduced portion 29 and the disk plate 28 is formed with an enlarged chamber 30. Mounted on the sleeve are coils 31, each. of which is connected to a commutator bar 32. The commutator bars 32 are of the usual construction and are secured to the reduced portion of the armature in any well known way.

The negative brush 33 is mounted in a suitable support which is grounded and is yieldingly pressed by a spring 34: against the commutator bars. The positive brush 35 is also mounted. in a suitable brush holder and is yieldingly pressed against the commutator bars by a spring 36. The positive brush 35 is connected to the terminal 37 of the cut-out 1-l-. This cut-out 14: consists of a coil 38, one end of which is connected with the terminal 37, while the other end is grounded, and an armature 39, which is controlled by the coil.- Said armature carries a contact e0 which is adapted to engage a contact ll when the armature is moved toward the coil and this establishes a circuit from the positive brush 35 through a line 42 to the switch 15. The switch 15 has a terminal 43, which connects with the circuit 42 and connects, also, with the positive pole of the battery 14. The switch 15 has another terminal 4A, to which the line 18 is connected. A movable arm 45 serves as a means for connecting the line 18 with'the battery and the generator.

At the other end of the armature from the commutator bar's is a'second disk plate 3 46. Between the disk plate 28 and the disk plate 46 is a T-shaped cross-armature, On which are wound the primary coil 2 and the secondary coil 6. Located in the chamber 30 is the condenser 5 and the primary coil 2 is connected with one terminal of this condenser, as has been pointed out above. Said primary, indicated at 4:7 in Fig. 2, also connects through the rod as with the circuit breaker 3. Said circuit breaker includes a plate 49, which is fixed to a disk 50 and a movable arm 51, which is pivoted at 52 to-said disk. Said movable arm carries a contact 53 which is adapted to engage a contact 5i on the plate 49 when the outer end 55 of the arm 51 moves outwardly. This end 55 may be weighted sothat the centrifugal force will tend to keep the contacts together. Suitable cam plates fixed to tee of the generator engage at interture 65.

vals the arm 51. and separate the contacts. One oi these plates is indicated at 56 in Fig. 2 ot the drawings. This circuit breaker is shown diagrammatically in the drawings as it forms no part of the present invention except as it cooperates in a general way to direct the circuit of the primary at the proper interval.

The present invention is particularly adapted for furnishing the ignition for a motorcycle, wherein the engine cylinders are set at an angle to each other. The cam plates 56, which operate the circuit breaker are disposed at proper angles to each other to provide a breaking of the circuit at proper intervals to supply current for such an engine.

The secondary coil 6 is connected to a distributor 5'7, which is mounted between disks 58 o'l'insulating material and the brushes 59 and 60 make contact with this distributor plate and said brushes are connected respectively with the spark plugs 8 and 9. It will be understood that the base 22 and the cross plate 61 and also the end plates 62 and 63 are made of suitable non-magnetic material. The controller for the charging current is located on the cross-plate 61 and near the upper portion of the U-shaped field pieces. It will also be noted that the condenser is located wholly within that portion of the armature supporting the coils for the direct current generator. This makes a wery compact arrangement of the parts of the generator, all of the parts being housed within the generator casing.

In Fig. 4c of the drawings, 1 have shown a modified form of the invention, wherein a single coil is'substituted for the series of coils shown in Fig. 3. The construction and operation of this generator will perhaps be more apparent from Fig. 5 of the drawings.

Located between the central disk plate 28 and a second disk plate 6% is a cross armalVound on this cross armature is a single coil 66. One terminal of the coil is connected to a commutator plate 67, while the other terminal is connected with a commutator plate 68. These commutator plates are of considerable length extending through an arc of 90 to 150 degrees. Cooperating with the commutator plates is a positive brush G9 and a negative brush 70. These brushes are connected to the lines 71 and 72 with the terminal of the battery 15. The coil 66 is broken and connected to a circuit breaker including a fixed terminal 73, having a contact 7 land a movable arm 75, having a contact 76. The arm 75 is flexible and is provided with a weight 77. The arm is normally held with the contact separated. This circuit breaker is mounted on the central disk 28 and as the armature rotates the centrifugal force operating through the weight 77 will close the contac s when said time the maximum change in the flow of magnetic flux occurs, the commutator 68 is 111 contact with'the positive brush 69 and there will be a current impulse of a positive character sent through the battery. iVhen the armature 1s turned through an arc of 180 degrees and again breaking away from the pole pieces the flow of flux through the coil is in a reverse direction, but now the commutator' bar 67 is in contact with the positive brush 69 and there will result a second in termittent positive impulse through the battery B. Inother words by the use of a single coil I am able tosecure an intermittent positive charging current with considerable interValsbetWeen the charging impulses. This provides a charging current for the battery, which will not overheat the battery or cause injury thereto even though the same operates continuously to charge the battery when said battery has reached approximately a "full charge. i i ith the intervals between the charging impulse the battery recovers and cools and thus injurious results are avoided. Furthermore, the intervals are sufiicient to prevent the delivering of current when the voltage is below that of the battery.

The other end of the armature, as shown in Fig. 4, is provided with the primary and secondary windings precisely as above described, and a "further description. thereof is not thought necessary.

From the above description, it will be ap parent that I have provided a geneinnn system, wherein high tension source of current may be provided for ignition a an intermittent positive current provided. charging the battery. which. in tnrn i-ny he used for liglntingor operating the horn of a motor vehicle. The parts of the are very compact and thus the system is particularly adapted for operation upon a motor cycle. I

It is obvious that minor changes in the detail of construction and the arrangement of parts may be made without departing from the spirit of the invention set i'orth in the appended claims.

Having thus described in I claimas new and desire to secure a ters Patent, is;

' '1. A generating system comprising agenerator, including a single armature having a primary coil thereon a secondary coil on said armature cooperating with said prim'ary coil, said secondary coil being connected tosuitable ignition devices, a circuit breaker for said primary coil, a third coil located on said armature at one side of said.

generator first named c its and means whereby an intermittent on current in therefrom to; sing a ha or. i

2. generatr including in combination an armature, bearings at each armature, a. primary coil mounted on said armature, a secondary coil cooperating with said primary coil on said armature, a dis tributer through which secondary coil connecte with E evice of a.

rd coil mounted on said .c secon w and priniar .51 devices cot per with said third c for providing intermittent direct our i 3. A an ator including in combination an armat-iire having a. hearing at each end thereof, a disk located centrally oi said armature and extending t1 nsverseiy thereof, a second disk at one end of said arma tare, a cross-armature between said disks and conne thereto, a ondary coil on said 0 cooperating with said a high tension i mounted o tral disk y and secarinature, devices coils itor furnishing aid nature betwe 21 said cenend o3. said cooperatin with said hing an interniittsit di- ,1 vii generator including i combination on i ature having a hearing at each end, a permanent magnetic for said armature a disk located ce rally if said antheresaiddislr, ionnted on said cross-armature, Josite side of said a circuit breaker on one end of said or ture and tonne l primary coihs distributor-at tne other end oi said armsture, a tin coil located on said arinati s between said disk and the circuit bros. er, a commutator said last name end of said Quit-ion current; third coil coil is connected, and brushes cooperating With said commutator.

6. A generator including in combination cross armature, said armature at the other side of said disk having a chamber formed therein, a condenser located in said chamber, said conden er being connected to said primary coil, a circuit breaker at one end of said armature and connected to said primary coil, a distributer at the other end of the armature and connected to said secondary coil, a series of coils mounted on the armature adjacent said central-disk, commutator bars mounted on said armature and connected with said coils, and brushes cooperating with said commutator bars.

7. A generator including in combination an armature having a hearing at each end, permanent magnets for said armature, a disk located centrally of said armature, a

second disk at one end oi said armature, a cross armature connected to said disk, a pri mary and a secondary coil mounted on said cross armature, said armature at the other side of said disk having a chamber formed therein, a condenser located in said chamher, said condenser being connected to said primary coil, a circuit breaker at one end of said armature and connected to said primary coil, a distributor the other end of the armature and connected to said secondary coil, :1 series of coils mounted on the armature adjacent said central disk, commutator bars mounted on said armature and 1 connected with said coils, brushes coiiperatmg with said commutator bars, and current control cut-out located in the space between the magnets for the current delivered il itnesses JOHN D. STEM-inn CLARENCE A. EARL. 

